EP1303078B1 - Alarme d'un terminal de télécommunication connecté à un réseau local - Google Patents
Alarme d'un terminal de télécommunication connecté à un réseau local Download PDFInfo
- Publication number
- EP1303078B1 EP1303078B1 EP01440343A EP01440343A EP1303078B1 EP 1303078 B1 EP1303078 B1 EP 1303078B1 EP 01440343 A EP01440343 A EP 01440343A EP 01440343 A EP01440343 A EP 01440343A EP 1303078 B1 EP1303078 B1 EP 1303078B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal
- dte
- signal
- ethernet equipment
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 9
- 230000003213 activating effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
Definitions
- the present invention relates generally to a data processing local area network LAN, for example an Ethernet network.
- the invention relates to a method of providing a signal to a terminal in a LAN as set forth in the preamble of claim 1, a terminal adapted to implement this method and an Ethernet equipment as set forth respectively in the preamble of claim 6 and 10.
- a typical Ethernet connection to an office location with a telecommunications system is usually based on the use of half of the 8 wires of a line L separated in two unshielded twisted pair of wires giving - one pair for transmission Tx, one for reception Rx.
- the transmission pair is dedicated to send packets of data over the Ethernet connection; the reception pair receives packets of data over the Ethernet connection.
- the four other wires are usually not used for data transmission.
- an Ethernet device power transmission system providing electrical power to telecommunications terminals such as Ethernet telephones and related equipment over a 4-wire Ethernet connection. This is achieved without the need for rewiring premises having an existing 4-wire Ethernet system.
- This system includes an input transformer, an output transformer and a pair of twisted pair conductors.
- the input transformer includes a pair of primaries for connection to a source of Ethernet data.
- the input transformer also includes a pair of secondaries, each having a center-tap.
- a first twisted pair conductor is connected across the first secondary, a second twisted pair conductor is connected across the second secondary and a DC-bias is provided between the respective center taps of the first and second secondaries.
- the output transformer includes a first and second center-tapped primary and a first and second secondary for connection to the load device. The first and second primary center taps are connected to a power processor for extraction of DC power.
- EP1100226 is disclosed a more specific method of providing a remote power feed to a telecommunications terminal over an Ethernet connection. Previously sending a power supply current over that connection, at least one detection signal on at least two conductors of that connection is fed for detecting the presence of a telecommunications terminal adapted to receive a remote power feed. Applying such method shall prevent all risk to such terminal because the remote power feed current is sent only if the terminal has been identified as one which is adapted to receive a remote power feed.
- the intensity and duration of the detection signal are chosen so that the operation of detecting the terminal cannot cause any damage if it is not one which is adapted to receive a remote power fed.
- the detection signal characterizing said DTE is defined by a signature usually an impedance of a predefined value connected to the two center taps of the transformers to which the two pairs of wires are connected.
- a signature usually an impedance of a predefined value connected to the two center taps of the transformers to which the two pairs of wires are connected.
- impedance for each different power class of terminals to be connected to a LAN.
- the same impedance is also connected to the two center taps of the transformer to which the two pairs of the other couple are connected.
- the DTE contains two detectors each one connected at the two center taps corresponding to a couple of two pairs of wires. These detectors measure the corresponding voltage present at the respective two center taps. When such measure exceeds a predefined value then they activate a respective switch letting said power supply remotely powering said DTE.
- a problem will appear when the required power for a specific terminal can not be supplied by any Ethernet equipment coupled to said DTE via said line. This may occur when the power class of the DTE will exceed the maximum power which can be supplied by the corresponding Ethernet equipment. In that case, no power at all will be supplied to this DTE. And the user of such DTE will not be aware about the origin of the power supply problem. He/she may believe of a breakdown of its terminal or the line.
- This object is attained by a method of providing a signal to a terminal in a local area network as claimed in claim 1, a terminal adapted to performed such method and an Ethernet equipment as claimed respectively in claim 6 and 10.
- the Ethernet equipment Before any supply of remote power to a telecommunications terminal connected to a local area network, the Ethernet equipment must recognize the power class of said terminal by measuring a specific electrical signature of said terminal via their interconnection. In the case said Ethernet equipment will stand in a situation unable to supply the required power, then it will send a specific signal via said interconnection which will activate an alarm on said terminal.
- FIG. 1 is a schematic view of a terminal DTE, usually a telecommunications terminal like an IP-phone connected to a local area network via a line L.
- a terminal DTE which can be remotely powered is then coupled via L to some Ethernet equipment 3.
- Said terminal DTE will be remotely powered by some remote power feed unit 31 possibly located in such Ethernet equipment 3 being a switch, a concentrator or a repeater (also known as a hub). Latter is then used to supply or transfer remotely some power to said terminal DTE.
- a line L typically, is made of 8 wires divided in two couples of two pairs of wires Pp+, Pp-; Pa+, Pa-.
- One Pp+, Pp- of the two couples is used for data transfer between the LAN and said terminal DTE.
- a pair Pp+ is used to send data from the LAN i.e. from the Ethernet equipment 3 towards Rx' the terminal DTE.
- the other pair Pp- of wires from this couple is used to send data from the terminal DTE towards Tx' the LAN.
- the other couple of the two pairs Pa+, Pa- of wires which are connected at Ethernet equipment 3 side to some units not shown on the figure 1 may be let unused.
- the remote power feed is provided via a common mode phantom circuit.
- Each pair of wires of the used couple Pp+, Pp- are connected to some transformer 33, 34 of a center tap transformer 32 from said Ethernet equipment 3 and on the terminal DTE side to some transformer 23, 24 respectively of a center tap transformer 22.
- Power supply for remotely powering said terminal DTE will be applied by said power feed unit 31 at center taps 35, 36 of the used transformer 33, 34.
- This supply power will be collected by some collector 21 in the terminal DTE at center taps 25, 26 of the respective transformer 23, 24 from its center tap transformer 22.
- the couple of pairs of wires Pp+ and Pp- will then be used as conductors of a phantom circuit.
- the power feed unit 31 is adapted to detect the presence of a terminal being able to be remotely powered. This is performed by sending some signal allowing to recognize some electrical signature usually an impedance 20 connected to the center taps 25, 26 of the transformer 23, 24 of the terminal specific for such terminal. The value of the measured impedance 20 will then define the amount of power required by said terminal DTE to be supplied by said power feed unit 31.
- the power feed unit 31 and the center tap transformer 32 can be in a separate module and completely independent of the Ethernet equipment 3, that module being simply inserted into the line L.
- FIG 2 and 3 are shown schematically the interface of a terminal DTE to the line L according to two different embodiments of the invention.
- the terminal DTE is connected in a same way to the line L via the transformers 23, 24 to which are connected the couple of pairs Pp+, Pp- of wires.
- the impedance 20 is connected in parallel to a rectifier bridge 27 connected itself to the two center taps 25, 26 of the transformer 23, 24 of the terminal center tap transformer 22.
- a switch 29 is connected after the rectifier bridge 27 and before the collector 21 (not shown on the figure 2 and 3) to allow to disconnect that collector 21 from the phantom circuit.
- Said switch 29 is controlled 40 by some detector 28 connected to the terminals of the rectifier bridge 27. That detector analyzes the power present on the line L and accordingly activates or inhibits 40 the switch 29.
- the switch 29 shall stay in an open stage when no adequate remote powering is present on the line L. Indeed, when the Ethernet equipment 3 sends some signals to measure the electrical signature of said terminal DTE, the switch 29 being open will hide the collector 21 so to allow a sure a rapid measurement of the corresponding impedance 20. Therefore, it is possible to set up the detector 28 to keep the switch 29 in an open stage in any case when the power present on the phantom circuit is lower than a predefined value - threshold voltage - corresponding to a correct remote powering of said terminal DTE. As soon as the power exceeds said threshold voltage, the detector 28 will then activate 40 the switch 29 to allow the collector 21 to receive the power required for a correct running of said terminal DTE.
- the Ethernet equipment 3 in case the Ethernet equipment 3 is unable to supply the required power for that terminal DTE, it will send some specific signal via the same phantom circuit to alert said terminal DTE about the situation. This signal is performed by some electrical circuit, possibly the same which had send before some recognition signal to said terminal DTE via the line L as a measure of said electrical signature 20. The alert signal will then notify to said terminal DTE of the incapacity to be remotely powered.
- the terminal DTE will be able to detect such alert signal using some detector 45, 46.
- this alert signal is sent using an alternating voltage over a short time.
- This alternating signal after being rectified by the rectifier bridge 27, must give a direct voltage low enough not to be mix up by the detector 28 as a remote powering.
- Such signal will be detected by a detector 45 connected in parallel to the impedance 20 as shown in figure 2.
- this alert signal is sent using a direct voltage.
- the voltage value will be greater as the one used to recognize the impedance 20 but lower than the one for a remote powering of said terminal DTE.
- Such signal can be detected by the detector 28 or a further detector 46 connected to said detector 28 as shown in figure 3.
- the alert signal when detected by the respective detector 45, 46 will activates some alarm.
- This alarm can be of the kind of an activated buzzer or the flashing of some light like a LED or even the notification of some message on a display of said terminal DTE.
- the chosen alarm must be easily recognizable by the user of said terminal DTE as being a specified alarm when a remote powering of the terminal via the line L is not possible.
- the user may be in a possibility to look for alternatives like to find another power supply (local one) or another terminal.
- the user will not be confused in believing that its terminal is broken and be accordingly fully informed about the reason of the wrong running.
- the terminal DTE may be possibly alternatively powered via a local supply i.e. not using any remote powering via the line L, then such local powering can be used to run the alarm after detection of the alert signal. This will then allow to use some alarm which are more power demanding like displaying some more complex message informing the user of the impossibility to let remotely powering its terminal DTE.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Emergency Alarm Devices (AREA)
Claims (10)
- Procédé de fourniture d'un signal à un terminal (DTE) dans un réseau local LAN, ledit terminal (DTE) étant connecté à un équipement Ethernet (3) dudit LAN par l'intermédiaire d'une ligne (L) comprenant deux paires de fils (Pp+, Pp-), chaque paire étant couplée respectivement à des transformateurs (23, 24) d'un transformateur de dérivation centrale (22) dudit terminal (DTE), de sorte que sur une (Pp+) desdites paires des données sont envoyées depuis un transformateur de dérivation centrale (32) dudit équipement Ethernet (3) vers ledit transformateur de dérivation centrale (22) dudit terminal (DTE) et sur l'autre (Pp-) des données sont envoyées dans le sens opposée, et chaque paire de fils (Pp+, Pp-) étant éventuellement utilisée comme des conducteurs d'un circuit fantôme, tandis que
un signal est envoyé par ledit équipement Ethernet pour une reconnaissance d'une signature électrique (20) spécifiant une classe d'énergie dudit terminal (DTE) au niveau duquel il doit être alimenté à distance par ledit équipement Ethernet (3)
caractérisé en ce que :lorsque ledit équipement Ethernet (3) est incapable de fournir l'énergie requise pour ledit terminal (DTE), alors ledit équipement Ethernet (3) envoie par l'intermédiaire de ladite ligne (L) un signal spécifique notifiant au dit terminal (DTE) de l'incapacité à être alimenté à distance. - Procédé de fourniture d'un signal selon la revendication 1, caractérisé en ce que ledit signal spécifique active une alarme dudit terminal (DTE).
- Procédé de fourniture d'un signal selon la revendication 1, caractérisé en ce que ledit signal est détecté par un détecteur (45, 46) connecté au niveau de dérivations centrales (25, 26) des transformateurs respectifs (23, 24) du transformateur de dérivation centrale de terminal (22), ledit détecteur (45, 46) activant ladite alarme après avoir reconnu ledit signal.
- Procédé de fourniture d'un signal selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit signal est un signal alternatif qui active un détecteur (45) connecté en parallèle à ladite signature électrique (20).
- Procédé de fourniture d'un signal selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit signal est un signal direct qui active un détecteur (46) connecté au niveau des terminaux d'un pont redresseur (27) qui est lui-même connecté au niveau des deux dérivations centrales (25, 26) du transformateur (23, 24) du transformateur de dérivation centrale de terminal (22).
- Terminal (DTE) adapté pour être connecte à un réseau local LAN et pour recevoir une alimentation électrique distante par l'intermédiaire de la même ligne (L) comprenant deux paires de fils (Pp+, Pp-), chaque paire étant couplée respectivement à des transformateurs (23, 24) d'un transformateur de dérivation centrale (22) dudit terminal (DTE) et étant éventuellement utilisée comme des conducteurs d'un circuit fantôme, et ledit terminal (DTE) comprenant une signature électrique (20) connectée à deux dérivations centrales (25, 26) des transformateurs (23, 24) du transformateur de dérivation centrale de terminal (22), tandis que ladite signature électrique (20) doit être reconnue par un équipement Ethernet (3) par l'intermédiaire de ladite ligne (L) comme une spécification de la classe d'alimentation dudit terminal (DTE) auquel il doit être alimenté à distance, caractérisé en ce que ledit terminal (DTE) contient un détecteur (45, 46) couplé aux dits deux dérivations centrales (25, 26) adapté pour reconnaître un signal spécifique émis par l'intermédiaire de ladite ligne (L) et notifiant au dit terminal (DTE) de l'incapacité à être alimenté à distance.
- Terminal selon la revendication 6, caractérisé en ce que ledit détecteur est couplé à une alarme qui est activé lors de la reconnaissance dudit signal spécifique.
- Terminal selon la revendication 6, caractérisé en ce que ledit détecteur (45) est connecté en parallèle à ladite signature électrique (20) permettant de détecter ledit signal spécifique qui est un signal alternatif.
- Terminal selon la revendication 6, caractérisé en ce que ledit détecteur (46) est connecté au niveau des terminaux d'un pont redresseur (27) connecté aux dits deux dérivations centrales (25, 26) permettant de détecteur ledit signal spécifique qui est un signal direct.
- Equipement Ethernet (3) d'un réseau local LAN avec un transformateur de dérivation centrale (32) connecté par l'intermédiaire d'une ligne (L) comprenant deux paires de fils (Pp+, Pp-) à un transformateur de dérivation centrale (22) d'un autre équipement Ethernet comme un commutateur, un routeur ou un terminal (DTE) dudit LAN, tandis que ledit équipement Ethernet (3) contient un circuit électrique connecté aux deux dérivations centrales (35, 36) des transformateurs (33, 34) dudit transformateur de dérivation centrale d'équipement Ethernet (32), ledit circuit électrique étant adapté pour envoyer un signal de reconnaissance au dit terminal (DTE) par l'intermédiaire de la ligne (L) comme une mesure d'une signature électrique (20) spécifiant une classe d'énergie dudit terminal (DTE) au niveau duquel il doit être alimenté à distance, caractérisé en ce que ledit équipement Ethernet (3) contient des moyens couplés au dit circuit électrique adapté pour envoyer un signal spécifique par l'intermédiaire de ladite ligne (L) notifiant au dit terminal (DTE) de l'incapacité à être alimenté à distance, ledit signal étant envoyé lorsque ledit équipement Ethernet (3) est incapable de fournir l'énergie requise.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60124920T DE60124920T2 (de) | 2001-10-15 | 2001-10-15 | Alarm für Telekommunikationsgerät eines Lokalnetz |
EP01440343A EP1303078B1 (fr) | 2001-10-15 | 2001-10-15 | Alarme d'un terminal de télécommunication connecté à un réseau local |
AT01440343T ATE347207T1 (de) | 2001-10-15 | 2001-10-15 | Alarm für telekommunikationsendgerät eines lokalnetz |
US10/253,800 US7068781B2 (en) | 2001-10-15 | 2002-09-25 | Alarm of a telecommunications terminal connected to a LAN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01440343A EP1303078B1 (fr) | 2001-10-15 | 2001-10-15 | Alarme d'un terminal de télécommunication connecté à un réseau local |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1303078A1 EP1303078A1 (fr) | 2003-04-16 |
EP1303078B1 true EP1303078B1 (fr) | 2006-11-29 |
Family
ID=8183317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01440343A Expired - Lifetime EP1303078B1 (fr) | 2001-10-15 | 2001-10-15 | Alarme d'un terminal de télécommunication connecté à un réseau local |
Country Status (4)
Country | Link |
---|---|
US (1) | US7068781B2 (fr) |
EP (1) | EP1303078B1 (fr) |
AT (1) | ATE347207T1 (fr) |
DE (1) | DE60124920T2 (fr) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US6956826B1 (en) | 1999-07-07 | 2005-10-18 | Serconet Ltd. | Local area network for distributing data communication, sensing and control signals |
US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
US6961303B1 (en) | 2000-09-21 | 2005-11-01 | Serconet Ltd. | Telephone communication system and method over local area network wiring |
GB2384407A (en) * | 2002-01-22 | 2003-07-23 | Mitel Knowledge Corp | Power supply for phantom-feed lan connected device using spare-pair powering |
AU2003274634A1 (en) * | 2002-10-15 | 2004-05-04 | Powerdsine Ltd. | Direct current power pooling |
IL152824A (en) | 2002-11-13 | 2012-05-31 | Mosaid Technologies Inc | A socket that can be connected to and the network that uses it |
US8098681B2 (en) * | 2003-01-29 | 2012-01-17 | Avaya Inc. | Method and apparatus for dynamic termination of unused wired connection |
US7409566B1 (en) * | 2003-06-18 | 2008-08-05 | Cisco Technology, Inc. | Methods and apparatus for controlling power supplied to a remote device through a network cable |
US7145439B2 (en) | 2003-10-16 | 2006-12-05 | Powerdsine, Ltd. | Powered device interface circuit |
US7898406B2 (en) * | 2003-10-16 | 2011-03-01 | Microsemi Corp. - Analoged Mixed Signal Group Ltd | Powered device with priority indicator |
US7243251B2 (en) * | 2003-12-04 | 2007-07-10 | Powerdsine, Ltd. - Microsemi Corporation | Method and apparatus for notifying end user of excess power demand |
IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
US7603570B2 (en) * | 2004-05-13 | 2009-10-13 | Cisco Technology, Inc. | Power delivery over ethernet cables |
US7660345B2 (en) | 2004-06-18 | 2010-02-09 | Aboundi, Inc. | Transceiver apparatus and method having ethernet-over-power and power-over-ethernet capability |
US7746911B2 (en) * | 2004-06-25 | 2010-06-29 | Finisar Corporation | Geometric optimizations for reducing spontaneous emissions in photodiodes |
DE102004046401B4 (de) * | 2004-09-24 | 2006-07-13 | Siemens Ag | Kommunikationssystem, Verteilerelement und Netzwerkgerät |
WO2006048867A1 (fr) * | 2004-11-08 | 2006-05-11 | Powerdsine, Ltd. | Systeme permettant de fournir de la puissance dans un ethernet a travers un tableau de connexions |
DE202005009309U1 (de) * | 2005-06-13 | 2005-09-01 | Wilhelm Rutenbeck Gmbh & Co. Kg | Aktives Leitungsprüfgerät zur Erkennung der Leistungsfähigkeit eines Netzwerkanschlusses |
US7809960B2 (en) * | 2005-10-12 | 2010-10-05 | Cicchetti Christopher J | Network tap device powered by power over ethernet |
US7809476B2 (en) * | 2005-10-12 | 2010-10-05 | Cicchetti Christopher J | Network tap/aggregator configured for power over ethernet operation |
US8027277B2 (en) * | 2005-11-15 | 2011-09-27 | Jds Uniphase Corporation | Passive network tap for tapping network data |
US7778207B2 (en) * | 2005-11-15 | 2010-08-17 | Light Greta L | Passive tap and associated system for tapping network data |
US7631201B2 (en) * | 2006-05-25 | 2009-12-08 | Foundry Networks, Inc. | System software for managing power allocation to Ethernet ports in the absence of mutually exclusive detection and powering cycles in hardware |
US7774628B2 (en) * | 2006-05-25 | 2010-08-10 | Foundry Networks, Inc. | Enabling/disabling power-over-ethernet software subsystem in response to power supply status |
US8250381B2 (en) * | 2007-03-30 | 2012-08-21 | Brocade Communications Systems, Inc. | Managing power allocation to ethernet ports in the absence of mutually exclusive detection and powering cycles in hardware |
GB2508762B (en) | 2011-10-28 | 2020-08-12 | Hewlett Packard Development Co | Network powered device |
TWI750078B (zh) * | 2021-04-08 | 2021-12-11 | 飛捷科技股份有限公司 | 乙太網路供電設備及乙太網路供電系統 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6115468A (en) | 1998-03-26 | 2000-09-05 | Cisco Technology, Inc. | Power feed for Ethernet telephones via Ethernet link |
US6218930B1 (en) * | 1999-03-10 | 2001-04-17 | Merlot Communications | Apparatus and method for remotely powering access equipment over a 10/100 switched ethernet network |
ATE458326T1 (de) * | 1999-11-04 | 2010-03-15 | Alcatel Lucent | Verfahren zur fernspeisung eines endgerätes in einem lokalen netz |
US6804351B1 (en) * | 2000-11-09 | 2004-10-12 | Cisco Technology, Inc. | Method and apparatus for detecting a compatible phantom powered device using common mode signaling |
-
2001
- 2001-10-15 EP EP01440343A patent/EP1303078B1/fr not_active Expired - Lifetime
- 2001-10-15 DE DE60124920T patent/DE60124920T2/de not_active Expired - Lifetime
- 2001-10-15 AT AT01440343T patent/ATE347207T1/de not_active IP Right Cessation
-
2002
- 2002-09-25 US US10/253,800 patent/US7068781B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
ATE347207T1 (de) | 2006-12-15 |
US7068781B2 (en) | 2006-06-27 |
DE60124920T2 (de) | 2007-03-15 |
DE60124920D1 (de) | 2007-01-11 |
EP1303078A1 (fr) | 2003-04-16 |
US20030072438A1 (en) | 2003-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1303078B1 (fr) | Alarme d'un terminal de télécommunication connecté à un réseau local | |
CA2886230C (fr) | Systeme et methode de detection de defaut a la terre dans un canal de communication isole d'un transformateur d'un dispositif de reseau | |
US6246748B1 (en) | Power feeding system using two-wire subscriber lines | |
JP3914019B2 (ja) | ローカルに電力供給されるように構成され、かつローカルエリアネットワークに端末を接続するリンクを介して遠隔電力供給を受けるように構成された端末 | |
US9013980B2 (en) | System and method for fail-safe communication across a compromised communication channel of a network device | |
CN109428730A (zh) | 以太网供电系统及其中执行的方法 | |
US20110254366A1 (en) | Data transmission device | |
WO2019163364A1 (fr) | Dispositif de détection de décharge en arc | |
US20130154348A1 (en) | Power feeding system and method | |
US6992599B2 (en) | Terminal adapter for connecting a terminal to a computer local area network capable of identifying any of several terminal types | |
JP2862552B2 (ja) | 火災報知設備 | |
JP2015102965A (ja) | 中継器 | |
JPH08214095A (ja) | 少なくとも1つの負荷に電力を供給するための回路装置 | |
JP2007281970A (ja) | 受電回路及び受電装置 | |
US10778453B2 (en) | System and apparatus for preventing faulty connection between PoC and PoE | |
KR101801551B1 (ko) | 전력선 통신 장치 | |
WO1995030297A2 (fr) | Unite de securite empechant le piratage de lignes telephoniques | |
JP2004094720A (ja) | 防災監視システム | |
JPH1151979A (ja) | 通電表示装置及び信号表示装置 | |
JPH06282786A (ja) | 防災監視装置 | |
JPH08313563A (ja) | 給電監視装置 | |
FI98593C (fi) | Menetelmä tilaajalaitteen ja keskuksen välisen yhteyden katkeamissyyn viestittämiseksi keskukselle, sekä tilaajalaite | |
JPH0779355B2 (ja) | 信号伝送装置 | |
KR100818734B1 (ko) | 전력 변환기 일체형 통신 커넥터 및 전력전송 방법 | |
JPH1084561A (ja) | 2線式伝送装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020313 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60124920 Country of ref document: DE Date of ref document: 20070111 Kind code of ref document: P |
|
RIN2 | Information on inventor provided after grant (corrected) |
Inventor name: VERGNAUD,GERARD Inventor name: LE CREFF, MICHEL Inventor name: GASS, RAYMOND |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070228 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070312 |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: ALCATEL LUCENT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070430 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20070830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071015 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061129 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: GC Effective date: 20140717 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: RG Effective date: 20141016 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CA Effective date: 20150521 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CA Effective date: 20150521 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20180913 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20181002 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20181018 Year of fee payment: 18 Ref country code: GB Payment date: 20181010 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60124920 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200501 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20191015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191015 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191015 |